If you are installing the Business Flow Manager, ensure that you are enabling the Rest API with a proper context root. The REST API is used by some widgets inside of the Business Process Choreographer and if you do not configure the URL properly, you will get errors when trying using the process state view.
Integrating Oracle BPEL with an HTTP (REST) Service
Right out of the gate in my experience with Oracle BPEL, I have to integrate with a non-SOAP HTTP service. Luckily, Lucas Jellema over on the AMIS Technology blog has a very well written article that goes end to end on exactly what you need to do in order to get Oracle and HTTP (REST) […]